Distribute the 2
2x-8=8
Add 8 to both sides
2x=16
divide by two
x=8
Answer:
6, -6
Step-by-step explanation:
The 2nd roots of 36 are 6 and -6 since
6^2 = 36
and
(-6)^2 = 36
Answer:
the sequence begins as {4, 7, ... }
Step-by-step explanation:
a(n) = 3n + 1
The first term is a(1) = 3(1) + 1 = 4, and
the second term is a(s) = 3(2) + 1 = 7
So the sequence begins as {4, 7, ... }
A cube has 6 faces, so the surface area of ONE face = 54/6 = 9
Each face of a cube is a square, so let's let x = the length of one side of that square
The area of a square = (side length)²
If the area of ONE face = 9, then we can write x² = 9, which means x = 3
So, each side of the cube has length 3
Volume of a cube = (side length)³ = (3)³ = 27
Answer:
27
